In March 2026, Jakub Brozek developed and contributed a new enumerate function to the DSLX standard library within the google/xls repository. This feature enables indexed array iteration, allowing developers to access both index and value directly in loops, which streamlines array-processing code and reduces repetitive boilerplate. Jakub implemented the function using C++ and DSLX, focusing on improving code readability and reliability for DSLX projects. The work established a foundational building block for future enhancements to the standard library. The concise and traceable commit history reflects a focused engineering approach, though the scope was limited to a single, foundational feature.